基质金属蛋白酶9在实验性自身免疫性脑脊髓炎大鼠发病过程中的动态表达

目的通过检测基质金属蛋白酶-9(MMP-9)在EAE大鼠发病过程中不同阶段外周血和中枢神经系统中的表达水平及动态变化,以探讨其在多发性硬化发病过程中的作用及机制。方法 Wistar雌性大鼠80只,分为模型组(EAE组)、完全福氏佐剂组(CFA组),分别于免疫后6天、8天、10天、12天、14天、16天、18天及20天取视交叉处脑组织和脊髓腰膨大段行HE染色观察炎性细胞的浸润状况;免疫组化法检测脑和脊髓组织中MMP-9的表达,酶联免疫吸附实验测定血清中MMP-9的含量。结果 EAE组大鼠脊髓和脑组织中MMP-9阳性细胞数及血清中MMP-9水平均显著高于同期CFA组(P<0.05);EAE 10天组与EAE 6天、14天、18天及20天组比较,大鼠脊髓腰膨大处MMP-9阳性细胞数较多(P<0.05);EAE 12天组与EAE 6天组、8天组、14天组、16天组、18天组及20天组比较,大鼠脑组织视交叉处MMP-9阳性细胞数较多(P<0.05);EAE 12天组与EAE 6天组、8天组、10天组、14天组、16天组、18天组及20天组相比较,大鼠血清中MMP-9含量较高(P<0.05)。结论在EAE大鼠发病前期即有中枢组织内MMP-9的高表达,且EAE大鼠脊髓中MMP-9的高表达要早于脑组织和外周血,但MMP-9表达的高峰在第12天与病理变化和疾病进展是同步的。     

基质金属蛋白酶-9在实验性自身免疫性脑脊髓炎大鼠的表达

目的 探讨基质金属蛋白酶-9（matrix metalloproteinase-9．MMP-9）在多发性硬化（MS）动物模型-实验性自身免疫性脑脊髓炎（experimental autoimmune encephalomyelitis．EAE）大鼠脑脊髓中的表达和作用。方法 应用豚鼠脑脊髓匀浆与完全福（氏）佐剂（CFA）混匀于Wistar大鼠颈背部皮下注射诱导建立EAE模型．同时将单独注射CFA或NS的大鼠设为对照组。采用半定量免疫组化方法检测Wistar大鼠发病后72h内及7、14d不同时间段脑脊髓中MMP-9的表达．并与对照组比较。结果 经免疫组化方法检测结果显示EAE大鼠脑脊髓内有特异的MMP-9表达．与对照组比较差异有显著性。发病72h内MMP-9表达高于发病后7d（P〈0．05）及发病后14d（P〈0．01）。结论 EAE大鼠脑脊髓的单核淋巴样细胞有特异MMP-9表达．且发病早期MMP-9阳性细胞率高于发病后期、恢复期及对照组．提示MMP-9与EAE发病有关。     

山茱萸总苷对大鼠实验性变态反应性脑脊髓炎的初步观察

目的：观察山茱萸总苷（TGCO）对大鼠实验性变态反应性脑脊髓炎（EAE）的影响。方法：Wistar大鼠24只随机分为3组：正常对照组、EAE组和TGCO组。采用动物行为学、常规苏木精-伊红染色和LFB髓鞘染色观察大鼠的发病情况与中枢神经系统（CNS）的病理变化。结果：EAE组7／8只大鼠出现典型的EAE行为学改变、CNS炎性细胞浸润和髓鞘脱失。TGCO组有3,8只大鼠出现EAE行为学改变,评分最高为29,潜伏期延长,CNS内炎性细胞浸润和髓鞘脱失明显减轻。对照组未见动物行为学和CNS病理学改变。结论：TGCO能减轻EAE大鼠的临床症状、延长潜伏期和降低发病率。     

雷公藤内酯醇对EAE大鼠中枢神经系统炎症浸润细胞凋亡及Bcl-2、Bax的影响

目的 观察雷公藤内酯醇(Tri)对实验性自身免疫性脑脊髓炎(EAE)大鼠中枢神经系统炎症浸润细胞凋亡及凋亡相关蛋白Bcl-2、Bax的影响. 方法 采用四肢足掌皮内注射完全福氏佐剂一豚鼠全脊髓匀浆(CFA-GPSCH),并辅以注射百日咳疫苗,诱导大鼠建立EAE模型.将大鼠随机分为模型组(EAE组)和腹腔注射Tri治疗组(Tri组),免疫后第11天Tri组腹腔注射Tri 40μg/(kg·d),EAE组给予等体积的生理盐水腹腔注射,第17天处死,观察中枢神经系统炎症细胞浸润程度,TUNEL法检测浸润细胞凋亡情况,免疫组化检测浸润细胞Bcl-2、Bax蛋白的表达. 结果 Tri组与EAE组相比,其中枢神经系统炎症浸润细胞的数目减少,凋亡率增高,Bcl-2表达下降,Bax的表达无明显变化,Bcl-2/Bax的比值下降. 结论 Tri可能是通过抑制EAE大鼠中枢神经系统血管周围炎症浸润细胞Bcl-2的表达,降低Bcl-2/bax的比值,从而提高炎症浸润细胞的凋亡率,减少炎症浸润细胞数目,减轻EAE的病情.     

黏附分子CD44在实验性自身免疫性脑脊髓炎中的作用

目的探讨黏附分子CD44在实验性自身免疫性脑脊髓炎(EAE)发病中的作用。方法将20只大鼠随机分为正常对照组及EAE组,EAE组采用粗制髓鞘碱性蛋白(MBP)抗原注入大鼠后足掌皮下(0. 2 ml/100 g)制作EAE模型,观察大鼠的发病情况及病理表现;并采用免疫组织化学法检测两组大鼠脑组织CD44的含量。结果正常对照组大鼠未发病,EAE组大鼠均有不同程度的发病。HE染色后,光镜下观察,正常对照组大鼠脑和脊髓无异常; EAE组大鼠可见脑及脊髓实质内小血管充血,小静脉周围有大量炎性细胞浸润,血管周围白质脱髓鞘改变。免疫组化显示,正常对照组大鼠脑和脊髓组织未发现CD44阳性细胞; EAE组大鼠中枢神经系统(CNS)白质及灰白质交界处可见大量CD44阳性细胞。结论 EAE模型中存在黏附分子CD44的高表达,其对EAE的发病可能起到促进作用。     

黏附分子CD44在实验性自身免疫性脑脊髓炎中的作用

目的 探讨黏附分子CD44在实验性自身免疫性脑脊髓炎（EAE）发病中的作用。方法 将20只大鼠随机分为正常对照组及EAE组,EAE组采用粗制髓鞘碱性蛋白（MBP）抗原注入大鼠后足掌皮下（0.2 ml/100 g）制作EAE模型,观察大鼠的发病情况及病理表现;并采用免疫组织化学法检测两组大鼠脑组织CD44的含量。结果 正常对照组大鼠未发病,EAE组大鼠均有不同程度的发病。HE染色后,光镜下观察,正常对照组大鼠脑和脊髓无异常;EAE组大鼠可见脑及脊髓实质内小血管充血,小静脉周围有大量炎性细胞浸润,血管周围白质脱髓鞘改变。免疫组化显示,正常对照组大鼠脑和脊髓组织未发现CD44阳性细胞;EAE组大鼠中枢神经系统（CNS）白质及灰白质交界处可见大量CD44阳性细胞。结论 EAE模型中存在黏附分子CD44的高表达,其对EAE的发病可能起到促进作用。     

白芍总苷对EAE大鼠中枢神经系统炎症浸润细胞凋亡及Bcl-2、Bax表达的影响

目的 探讨白芍总苷（TGP）对实验性自身免疫性脑脊髓炎（EAE）大鼠中枢神经系统（CNS）炎症浸润细胞凋亡及Bcl-2、Bax表达的影响.方法 建立大鼠EAE模型,将大鼠随机分为正常对照组、模型组、TGP组、泼尼松组,TGP组免疫后第1天起每天经口灌服白芍总苷悬浊液0.2 g/kg,泼尼松组给予泼尼松,正常对照组、模型组给予同体积生理盐水溶液,第17天处死,病理切片观察CNS炎症细胞浸润情况,TUNEL法检测浸润细胞凋亡情况,免疫组化检测浸润细胞Bcl-2、Bax蛋白的表达.结果 泼尼松组、TGP组与模型组相比,中枢神经系统炎症浸润细胞的数目减少,凋亡率增高.TGP组与模型组相比,Bcl-2表达下降,Bax的表达上调,Bcl-2/Bax的比值下降.泼尼松组与模型组相比,Bcl-2/Bax的比值下降.结论 TGP能减轻EAE的病情,其机制可能是下调Bcl-2的表达,上调Bax蛋白的表达,降低Bcl-2/Bax比值,促进EAE大鼠CNS炎症浸润细胞的凋亡,减少CNS炎症细胞的浸润.     

载脂蛋白E拟肽对实验性变态反应性脑脊髓炎小鼠基质金属蛋白酶-9和基质金属蛋白酶组织抑制因子-1表达的影响

目的探讨载脂蛋白E(Apo E)拟肽对实验性变态反应性脑脊髓炎(EAE)小鼠基质金属蛋白酶-9(MMP-9)和基质金属蛋白酶组织抑制因子-1(TIMP-1)表达的影响。方法将30只雌性C57BL/6J小鼠随机分为Apo E拟肽组、EAE组和正常组,每组10只小鼠。EAE模型通过以髓鞘少突胶质细胞糖蛋白多肽35-55为抗原诱导。Apo E拟肽组在免疫后第2 d到30 d每隔2 d按5 mg/(kg·d)背部皮下注射Apo E拟肽。EAE组和正常组均以等体积生理盐水替代。免疫后第0~35 d每日对小鼠进行神经功能评分。免疫后第35d解剖小鼠,分离大脑和脊髓并行HE染色。采用免疫组化染色法检测各组小鼠大脑、脑干和脊髓的MMP-9和TIMP-1的表达。结果正常组小鼠均未发病。Apo E拟肽组、EAE组的小鼠全部发病,但各有1只小鼠发病后死亡。Apo E拟肽组与EAE组的发病潜伏期差异无统计学意义(P=0.72)。Apo E拟肽组的神经功能评分在峰值和慢性期(第35 d)均明显低于EAE组(均P0.05)。HE染色示,正常组未见炎症细胞浸润;EAE组小鼠大脑、脑干和脊髓均有不同程度的炎性细胞浸润,以脑干和脊髓较为明显;Apo E拟肽组小鼠CNS炎性细胞浸润相对于EAE组明显减少。EAE组小鼠大脑、脑干和脊髓的MMP-9表达均高于正常组(均P0.05)。Apo E拟肽组小鼠大脑和脊髓的MMP-9表达要明显低于EAE组(均P0.05),其中Apo E拟肽组小鼠中脑和脊髓的MMP-9表达与正常组相比无明显差异(均P0.05)。正常组小鼠脊髓TIMP-1的表达明显高于EAE组和Apo E拟肽组(均P0.05)。而Apo E拟肽组与EAE组小鼠大脑、脑干和脊髓TIMP-1表达的差异均无统计学意义(均P0.05)。结论 Apo E拟肽能通过抑制大脑和脊髓MMP-9的表达改善EAE小鼠的症状。     

芬戈莫德对实验性自身免疫性脑脊髓炎小鼠脑组织基质金属蛋白酶-9表达影响的研究

目的探讨芬戈莫德对实验性自身免疫性脑脊髓炎(EAE)小鼠脑组织基质金属蛋白酶-9(MMP-9)mRNA及蛋白表达的影响。方法 48只雌性C57BL/6小鼠随机分为完全弗氏佐剂(CFA)组、EAE组、芬戈莫德组。运用髓鞘少突胶质细胞糖蛋白35-55构建EAE小鼠模型,小鼠神经功能缺损评分达到1分或免疫第14天,芬戈莫德组腹腔注射芬戈莫德10 mg·kg-1,相应的CFA组、EAE组给予生理盐水。观察小鼠行为学变化,中枢炎症和脱髓鞘情况,脑组织中的MMP-9 mRNA及蛋白表达。结果芬戈莫德组小鼠临床症状减轻,体重下降减少,潜伏期延长,发病率降低,炎性病灶数减少,脱髓鞘程度减轻。芬戈莫德组MMP-9 m RNA和蛋白表达水平较EAE组降低。结论芬戈莫德能抑制EAE小鼠脑组织中MMP-9 mRNA及蛋白表达水平。     

阿托伐他汀对实验性变态反应性脑脊髓炎大鼠TNF-α和iNOS表达的影响

目的应用阿托伐他汀干预实验性变态反应性脑脊髓炎(experiment allergic encephalom yelitis,EAE)大鼠,探讨药物对于疾病发病、炎性细胞浸润及TNF-α和iNOS表达的影响。方法采用豚鼠脊髓匀浆诱导Wistar大鼠建立EAE模型,口服给药干预,观察药物对大鼠发病、炎性细胞浸润情况及TNF-α和iNOS表达的影响。结果阿托伐他汀降低了大鼠发病率(P<0.05),改善了大鼠发病的严重程度(P<0.05),抑制了炎性细胞向脊髓组织的的浸润(P<0.05),降低了脊髓中iNOS的表达(P<0.05),但对于血清中TNF-α的水平没有影响(P>0.05)。结论阿托伐他汀降低了大鼠的发病率,减轻了实验性变态反应性脊髓炎大鼠发病的严重程度及炎性细胞的浸润、iNOS的表达。     

雌激素对实验性自身免疫性脑脊髓炎小鼠的治疗作用及对基质金属蛋白酶-9表达的影响

目的 探讨雌激素对实验性自身免疫性脑脊髓炎(EAE)小鼠中枢神经系统(CNS)中基质金属蛋白酶-9(MMP-9)表达的影响.方法 用MeG35-55多肽诱发60只EAE小鼠模型,做去卵巢术.分为治疗组和对照组,治疗组予雌激素治疗.比较2组EAE小鼠的临床症状评分.取脑和脊髓,行HE染色观察各组EAE小鼠炎症反应;实时荧光定量PCR及免疫荧光染色法检测各组EAE小鼠CNS中MMP-9的表达.结果 治疗组EAE小鼠与对照组相比临床症状减轻(治疗组3.23±0.83,对照组1.62±1.00,t=3.811,P＜0 05)、发病率降低(治疗组8/30,对照组28/30);HE染色显示治疗组炎症细胞浸润(急性期0.895±0.206,缓解期0.752±0.302,慢性期0.732±0.183)较对照组(急性期3.472±0.635,缓解期2.881±0.662,慢性期1.891±0.482)减少(t=8.622、6.543、5.027,均P＜0.01),实时荧光定量PCR及免疫荧光染色结果示治疗组EAE小鼠CNS中MMP-9表达降低.结论 雌激素能抑制EAE小鼠CNS中MMP-9的表达,减轻EAE小鼠临床症状及炎症反应.

Abstract：

Objective To study the regulation effect of estrogen in expression of matrix metalloproteinase-9 (MMP-9) in the central nervous system (CNS) in mice with experimental autoimmune encephalomyelitis ( EAE).Methods The 60 mice were overiectomized and 2 weeks later EAE was induced with MOG35-55 peptide in these mice.They were divided into a treatment group and a control group.The treatment group was treated with estrogen and the control group was given PBS.Clinical symptoms in these two groups were scored and compared.HE staining was used to observe inflammation in the brain and spinal cord.The MMP-9 expression in the CNS was examined by quantitative real-time PCR and immunofluorescence staining.Results The incidence of disease was lower (treatment and control group were 8/30 and 28/30 respectively) and clinical symptoms were milder (treatment and control group were 3.23±0.83 and 1.62 ±1.00 respectively,t=3.811 and P＜0.05) in the treatment group than those in the control group.HE staining showed the decreased infiltration of inflammatory cell in the treatment group (Treatment group:inflammatory score were 0.895 ±0.206,0.752 ±0.302,0.732 ±0.183 in acute,relief and chronic phase respectively;Control group:inflammatory score were 3.472 ±0.635,2.881 ±0.662,1.891 ± 0.482 in acute,relief and chronic phase respectively.t = 8.622,6.543 and 5.027,all P ＜ 0.05).The quantitative real-time PCR and immunofluorescence staining showed that the expression of MMP9 in the CNS was decreased in the treatment group.Conclusion Estrogen may decrease MMP-9 expression in the CNS,reduce inflammation and clinical symptoms in mice with EAE.     

Rolipram impairs NF-kappaB activity and MMP-9 expression in experimental autoimmune encephalomyelitis

Rolipram suppresses experimental autoimmune encephalomyelitis (EAE) and diminishes cell infiltration of the central nervous system (CNS). In Lewis rats with EAE, rolipram reduced matrix metalloproteinase-9 (MMP-9) gene expression in lymph node cells (LNCs) and spinal cord, decreased basal levels of nuclear (p50/p65) NF-kappaB in LNCs from treated rats, and impaired CD3 mediated NF-kappaB translocation. Rolipram reduced the luciferase activity directed by the NF-kappaB binding site of the MMP-9 gene in lymphocytes. It also diminished NF-kappaB activity and the ability of a myelin basic protein (MBP) specific cell line to migrate across artificial basement membranes. IL-2 induced MMP-9 proteolytic activity was only slightly reduced indicating that additional factors contribute to inhibit cell migration mediated by rolipram.     

实验性自身免疫性脑脊髓炎模型的建立和长期观察研究

目的 建立实验性自身免疫性脑脊髓炎小鼠模型(EAE)并长期观察研究.方法 C57BL/6小鼠30只,随机分为EAE模型组、PBS对照组和正常对照组.应用神经功能评分进行临床评估,通过HE和髓鞘染色观察组织病理变化.结果 小鼠在诱导后的12±3d急性起病,16±2d内达到高峰,严重度评分为3.2±0.6分.半年观察期内复发1次,复发率为25%.光镜下可见EAE组以脊髓组织病变为主,表现为大量炎性细胞浸润和白质脱髓鞘.结论 采用MOG_(35-55)诱导C57BL/6小鼠建立的模型既往被认为是一种慢性迁延EAE模型,本研究通过长期观察发现其存在缓解复发现象.

Abstract：

Objective To establish a mice model of experimental autoimmune encephalomyelitis (EAE) and perform a long term study. Methods C57BL/6 mice were immunized with 300μg MOG_(35-55) in complete Freund' s adjuvant (CFA) to establish EAE model in EAE group (n = 10). Mice in adjuvant group( n = 10)were treated with CFA without MOG_(35-55) and control group( n = 10)were treated with normal saline. The pathologic changes of the central nervous system were studied by HE staining and myelin staining. Results The clinic symptoms of EAE were present in the 12±3th day post-immunization,and went to the peek in the 16±2 th day post-immunization. The severity score was 3.2±0.6. One relapse was observed in the term of 6 months, and the rate was 25%. Light microscopy showed there were abundant inflammatory cells infiltrated especially in spinal cord tissues in EAE mice,with evident demyelination in white matter. Conclusion The relapse of this EAE model was observed in the study, though it was believed to be a chronic persistent model without relapse.     

2-(2-苯并呋喃基)-2-咪唑啉对实验性自身免疫性脑脊髓炎小鼠脊髓胶质纤维酸性蛋白表达的影响

目的探讨咪唑啉Ⅱ类受体(I2R)高选择性配体2-(2-苯并呋喃基)-2-咪唑啉(2-BFI)对实验性自身免疫性脑脊髓炎(EAE)小鼠脊髓胶质纤维酸性蛋白(GFAP)表达的影响。方法 C57BL/6小鼠30只,随机分成EAE组、2-BFI组和对照组,每组10只。EAE组及2-BFI组给予皮下注射抗原液诱导为EAE模型;2-BFI组同日起腹腔注射2-BFI共14 d。各组每日进行2次神经功能缺损评分;第19 d进行脊髓病理学检查,免疫组化法观察脊髓炎症细胞浸润、髓鞘脱失程度及GFAP表达。结果 2-BFI组神经功能缺损评分(4.17±3.65)明显低于EAE组(10.41±3.02)(P<0.01);脊髓病理评分(1.10±0.59)较EAE组(2.38±0.86)显著减少(P<0.01);GFAP阳性细胞数[(18.83±2.31)个/HP]明显多于EAE组[(12.25±2.66)个/HP](P<0.05)。结论 2-BFI能减缓小鼠EAE疾病发展,可能与促进中枢神经系统中GFAP的表达有关。     

Suppression of clinical weakness in experimental autoimmune encephalomyelitis associated with weight changes, and post-decapitation convulsions after intracisternal-ventricular administration of 6-hydroxydopamine

Selective depletion of central nervous system norepinephrine (NE) by the neurotoxin 6-hydroxydopamine (6-OHDA) in rats subsequently inoculated with myelin basic protein (MBP) and complete Freund's adjuvant (CFA) produced experimental autoimmune encephalomyelitis (EAE) without the usual expected degree of weakness. The preservation of strength occurred in spite of continued weight loss. Post-decapitation myoclonic convulsive kick latency and kick number, which are known to depend on spinal cord NE, agreed well with the degree of weakness through the clinical disease course. The only difference between EAE groups was that the stronger 6-OHDA pretreated EAE animals did not have an elevated pons-medulla NE compared to saline intracisternal-ventricular (i.c.v.) pretreated controls. We conclude that 6-OHDA can influence the clinical course of weakness by interfering with central noradrenergic activity independent of other features associated with disease in EAE. This effect of 6-OHDA may be exerted through alteration of the blood-spinal cord barrier function and/or central nervous system blood flow.     

Rapid entry and downregulation of T cells in the central nervous system during the reinduction of experimental autoimmune encephalomyelitis

We investigated the mechanisms whereby a previous attack of experimental autoimmune encephalomyelitis (EAE) modifies a subsequent attack in the Lewis rat. Active immunization with myelin basic protein (MBP) and complete Freund's adjuvant 28 days after the passive transfer of MBP-sensitized spleen cells induced a second episode of EAE, which occurred earlier than in naive control animals, but was less severe overall. The pattern of neurological signs was also different in rechallenged rats, which had less severe tail and hindlimb weakness but more severe forelimb weakness. In rechallenged rats, inflammation was more severe in the cervical spinal cord, cerebellum, brainstem and cerebrum, but less severe in the lumbar spinal cord, than in controls. The early onset of EAE in rechallenged rats was explained by a memory T cell response to MBP(72-89) in the draining lymph node and spleen, and by the enhanced entry of T cells into the central nervous system (CNS). However, the number of alphabeta T cells in the spinal cord of rechallenged rats declined faster than in controls, especially in the lumbosacral cord, where the number of Vbeta8.2(+) T cells and the frequency of T cells reactive to MBP(72-89) rapidly decreased, indicating rapid downregulation of the immune response in the previously inflamed spinal cord. Apoptosis of inflammatory cells in the CNS was increased in the rechallenged rats and is likely to contribute to this downregulation. Furthermore, during the disease course the generation of encephalitogenic T cells in the peripheral lymphoid organs was limited compared with controls. Thus, a previous attack of EAE modifies a subsequent attack through the interaction of the following processes: a memory T cell response to MBP; facilitated T cell entry into the CNS; downregulation of the immune response in the CNS, including increased apoptosis of inflammatory cells; and a limited generation of encephalitogenic T cells in the peripheral lymphoid organs.     

实验性自身免疫性脑脊髓炎豚鼠模型的建立及其病理和MRI的观察

目的　探索建立实验性自身免疫性脑脊髓炎 ( EAE)豚鼠动物模型 ,了解其病理及磁共振 ( MRI)的变化特点 ,为多发性硬化 ( MS)实验性治疗研究提供实验依据。方法　采用注射完全福 (氏 )佐剂 -豚鼠全脊髓匀浆( CFA-GPSCH) ,并辅以注射百日咳疫苗 ( BPV) ,诱导豚鼠 EAE模型。分别利用光镜和 MRI观察 EAE豚鼠中枢神经组织 ( CNS)的病理与影像改变。结果　豚鼠在注射抗原 1 6d后出现 MS症状 ,发病率达 90 %以上。脑、脊髓组织可见血管周围炎细胞呈袖套样浸润并有白质脱髓鞘。MRI检查可发现中枢神经系统病变异常信号。结论　采用 CFA-GPSCH并辅以注射 BPV诱导的 EAE模型简单、经济、可靠 ,并具有发病率高的特点。其病理特点是血管周围炎性浸润 ,白质脱髓鞘。 MRI可用于评价 EAE豚鼠 CNS病变     

Wistar大鼠实验性自身免疫性脑脊髓炎模型的建立

目的:建立Wistar大鼠实验性自身免疫性脑脊髓炎(experimental autoimmune encephalo-myelitis,EAE)模型,并检测可溶性血管细胞黏附分子-1(soluble vascular cell adhesion molecule-l,sVCAM-1)在EAE大鼠中的动态表达。方法:将豚鼠麻醉后,不用磷酸盐缓冲液(PBS)灌注,直接取新鲜豚鼠全脊髓制备匀浆(Guinea Pig Spinal Cord Homoge-nate,GPSCH)为抗原,免疫Wistar大鼠建立EAE的动物模型。观察其体重及神经功能评分的变化;取脑、脊髓组织石腊包埋,病理切片,光镜观察;采用双抗体夹心法酶联免疫吸附实验(ELISA)检测血清中sVCAM-1的表达。结果:Wist-ar大鼠在免疫后10天出现明显的神经系统体征,发病率达100%;脑脊髓组织可见血管周围炎细胞呈袖套样浸润;sV-CAM-1的表达与对照组比较有显著性升高(P<0.01)。结论:采用非灌注法制备的豚鼠全脊髓匀浆作为抗原,能够成功诱发Wistar大鼠的EAE模型,为研究多发性硬化(multiple sclerosis,MS)的发病机制及治疗奠定了一定的基础。